MSI B460M PRO, User Manual, Page: 15 / 181

15
Overview of Components Overview of Components
CPU_FAN1, SYS_FAN1: Fan Connectors
PWM Mode fan connectors provide constant 12V output and adjust fan speed with
speed control signal. When you plug a 3-pin (Non-PWM) fan to a fan connector in
PWM mode, the fan speed will always maintain at 100%, which might create a lot of
noise.
⚠
Important
You can adjust fan speed in BIOS > Advanced > Hardware Monitor.
1
PWM Mode pin definition
1 Ground 2 +12V
3 Sense 4 Speed Control Signal
Connector
Default fan
mode
Max. current
Max.
power
CPU_FAN1 Auto mode 1A 12W
SYS_FAN1 DC mode 1A 12W
1
DC Mode pin definition
1 Ground 2 Voltage Control
3 Sense 4 NC
1
2
12
11
1 SPI Power 2 SPI Chip Select
3
Master In Slave Out (SPI
Data)
4
Master In Slave In (SPI
Data)
5 Reserved 6 SPI Clock
7 Ground 8 SPI Reset
9 Reserved 10 No Pin
11 Reserved 12 Interrupt Request
JTPM1: TPM Module Connector
This connector is for TPM (Trusted Platform Module). Please refer to the TPM
security platform manual for more details and usages.